STC5230 Datasheet, PDF (43/48 Pages) Connor-Winfield Corporation – Synchronous Clock for SETS

STC5230
Synchronous Clock for SETS
Data Sheet
Noise Transfer Functions
User may write to T(0/4)_Bandwidth registers to set the loop bandwidth of the DPLL of each timing generator.
The noise transfer function of the filtering of the DPLL is decided by the loop bandwidth. The figure 13 shows
the noise transfer functions as the loop bandwidths varying from 90mHz to 107Hz.
10 dB
0 dB
-3 dB
-10 dB
90mHz
180 mHz
370 mHz
-20 dB
730 mHz
1.5 Hz
2.9 Hz
-30 dB
-40 dB
5.9 Hz
12 Hz
24 Hz
50 Hz
107 Hz
-50 dB
10 mHz
100 mHz
1 Hz
10 Hz
Jitter Frequency
Figure 13: Noise Transfer Functions
100 Hz
1 kHz
Preliminary
Data Sheet #: TM102 Page 43 of 48
Rev: P01
© Copyright the Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Date: August 22, 2007